#include <stdio.h>

void func1()
{
    char* lp = NULL;
    *lp = 'a';
}

void func()
{
    int aa = 10;
    int bb = 20;
    int cc = aa + bb;
    printf("cc = %d\n", cc);
    //func1();
}

int main()
{
    int a = 10;
    int b = 20;
    int c = a + b;
    printf("c = %d\n", c);
    func();
    return 0;
}
